151031124251 has 4 divisors (see below), whose sum is σ = 172606999152. Its totient is φ = 129455249352.

The previous prime is 151031124143. The next prime is 151031124313. The reversal of 151031124251 is 152421130151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151031124251 - 2²² = 151026929947 is a prime.

It is a super-2 number, since 2×151031124251² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151031124251.

It is not an unprimeable number, because it can be changed into a prime (151031123251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10787937440 + ... + 10787937453.

It is an arithmetic number, because the mean of its divisors is an integer number (43151749788).

Almost surely, 2^151031124251 is an apocalyptic number.

151031124251 is a deficient number, since it is larger than the sum of its proper divisors (21575874901).

151031124251 is an equidigital number, since it uses as much as digits as its factorization.

151031124251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21575874900.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 151031124251 in words is "one hundred fifty-one billion, thirty-one million, one hundred twenty-four thousand, two hundred fifty-one".